从类星体中检索'QMediaPlayer‘上事件的值​

import sys
from PyQt5.QtCore import QUrl
from PyQt5.QtMultimedia import QMediaPlayer, QMediaContent

def position_changed(position):
    print(f"Current position: {position} ms")

def duration_changed(duration):
    print(f"Duration: {duration} ms")

def error_occurred(error):
    print(f"Error: {error.errorString()}")

app = QApplication(sys.argv)

player = QMediaPlayer()
player.mediaStatusChanged.connect(lambda status: print(f"Media status changed: {status}"))
player.positionChanged.connect(position_changed)
player.durationChanged.connect(duration_changed)
player.errorOccurred.connect(error_occurred)

media_content = QMediaContent(QUrl.fromLocalFile("path_to_your_media_file.mp4"))
player.setMedia(media_content)
player.play()

sys.exit(app.exec_())